Ok, so this may turn out to be a big long so bear with me if you can. I'd have posted in AIBU but DH is an AIBU addict. 
My in laws have been annoying me monumentally lately, even more so this weekend as I was coerced to stay here by DH. My relationship with them is quite difficult, especially FIL, who told DH 6 weeks before we were due to be married that he thought I wasn't good enough for him and that he should not marry me.
Things that have annoyed me since we arrived yesterday are:
- DD1 being wound up and getting over excited by FIL and he then carries on doing what he is doing after we have told DD1 to calm down, resulting in her being told off and FIL butting in saying 'it was my fault' but him carrying on again.
- FIL giving DD2 (14 months) a medicine bottle to shake, after previously being told in the past not to do that.
- FIL trying to coerce DD1 to eat more of her tea by lighting a lighter and each time he lights it she has another mouthful.
- After explicitly being told not to give DD1 anything to eat as she had only had her tea (and dessert!) at most 30 minutes earlier, MIL gives her half a necterine to eat because 'she was so good getting her hair brushed after her shower'
- MIL trying to parent DD1 even though we are right there and have already started to tell her off.
- MIL saying how SHE will teach DD1, who is starting school in a week and a bit, her numbers and letters. She always goes on about this, she's a sub primary school teacher, about to retire and thinks she knows everything.
- MIL using 'if you're good etc then you can have a magazine/sweets etc'
I am currently 13 weeks pregnant with DC3. This was very unplanned but we are happy. We informed them yesterday and DH mentioned that this was definitely the last DC and he would be having the snip at some point. DH and I had already discussed this before so it wasn't any news to me. MIL then proceeded to turn to me and ask 'will they not just tie your tubes when you have the c section'. I was a bit taken aback as, yes I do have to have another section (1st was emergency and second was elective) but surely she realises that it is much worse for me to have my tubes tied?
I understand that my hormones are running wild at the moment but some of the things that have pissed me off so far have already happened and they've been told not to do it again. I have had a word with DH about it all and he just says 'I know'. To be fair, he has already had a word but it's like it falls on deaf ears. I don't feel like I can talk to FIL as we just tolerate eachother for the sake of it after all that has happened.
Other things annoy have annoyed us, such as having to stay in a hotel when BIL and SIL were visiting with DNiece, as BIL wanted to spend some 'quality time' with in laws. They drive and we don't, they could visit any time but rarely do. We both live in the same town and its about a 70 minute drive to in laws, so if we come we tend to stay for a weekend or somthing. Now MIL acts as if we can't all stay at the same time, even though they had an extension done for this very reason.
I don't know if I'm being unreasonable or not but I don't know how to broache all these issues that are pissing me off. I'm on the verge of telling in laws to piss off. MIL can be very underhand and sometimes manipulative, like crying and being subdued after DH told her firmly to bring DD2 inside when she was a few months old as MIL was standing outside in the back with her sister who was smoking right next to DD2. She has a tendency to act 'woe is me' and if she's done something wrong tries to get you to feel sorry for her.
Sorry for the rant. If anyone has any advice on how to deal with in laws then it would be much appreciated. Also ready to be told I am a hormonal cow 
Thanks in advance :)