Hello. I posted on here a couple of months ago about the sme thing. I have a 7 month old lab who is now in season. My vet will not spay bitches until 2 months after their first season. He is adamant that it can cause problems with the urinary tract later in life and firmly believes it is dangerous to operate in that area on a bitch if you do not know where she is in her cycle.
Most vets in my area have the same view.
I was really worried about her going into season. However, it has not been nearly as bad as I expected. We are on day 15 today, average is about 21 days and she stopped bleeding yesterday. I walked her on a lead for the first ten days avoiding parks and open areas and sticking to main roads but at day 10 she started pulling so hard trying to follow dog scent also we met a dog on a lead that the owner could barely control as it smelt her so for the last 5 days we have stayed in. This has been the hardest part really, but I go into the garden with her twice a day and we race around with a ball. Hopefully another week and we can go back out again.
The bleeding is not too bad at all. She has been a star at cleaning herself up and only drips a little after lying down for a while and I have replaced the fleece mat in her crate with towels for the duration (easier to wash). I still let her into the lounge in the evening but she must lie on a towel.
She has been quite clingy and has cried a bit when left alone but not too bad considering what I was expecting!
Hope this helps. Have a chat with your vet and see what their advice is. Mine gave me lots of good advice about coping with a dog in season. The most important thing really is not to let her off the lead and avoid other dogs, also make sure no willfull males can get in your garden!
Although not fun it is not as bad you think and as mine will be spayed mid April before the next one, I will only have to do it once.
There was lots of helpful advice on here too!