Please respond

I feel like i might be pregnant but then i feel like maybe I’m just thinking about it too much I’ve been feeling really wierd lately and the other night me and my boyfriend had sex and it brought on my cycle 🤷🏾‍♀️and my period has been irregular since getting off birth control could i possibly be pregnant or no? And my cycles has been lasting longer than usual like I’ll go a whole month on it then i won’t have one for about 2-3 months later? Has anyone had period like bleeding through their pregnancy