Is it my period or can I FINALLY be pregnant after 3 years!!!!

Erendida
I need your help lady's!
Ok so 28 days after my last period feb. 23rd I had mild craps and was for sure I was going to get my period later that day I went to the restroom to pee and cleaned my self and saw blood so I was kinda disappointed to see blood because my husband and I have been trying to have a family for about 3 years now but the strange thing is that I don't think it was my period because the time I cleaned my self was the only time I saw blood till two days later after having sex I woke up to pee and cleaned again and saw blood but it was more pink then red and that happend again one more time after that but it was only those 3 times and I didn't even where a pad or anything because it was only that time I would clean my self and I would clean my self again and nothing and I normally have irregular periods but I have never had this happen to me if I remember right plz help or can someone give me some advice