I'm 35 weeks and have experienced the Braxton hicks tightenings since about 20 weeks. These usually last a minute or two and don't hurt. For the past three nights I've been getting period type cramps lasting 20 mins. At first I thought perhaps I had overdone it at the weekend and it was round ligament pain or similar (we had a house full of guests and went for a longish walk) but they seem to come back every evening between 8.30 and 10.00. Has anyone else experienced this? Are they Braxton hicks but ramped up ones because I'm further along? The odd thing is that they feel so much like period cramps I've instinctively checked for blood a few times half expecting my period (obv won't have, but hopefully you get what I mean!). Because they are only in the evenings I feel fine during the day.