After tubal symptoms

Had a tubal ligation like 2 weeks ago. My incisions look fine and so does my abdomen. I feel weak and fevered but my husband and both kids are sick so I’m hoping it’s from that lol. OBGYN said can have intercourse when ready but every time we do I am very sore after. Sometimes for more than a day and I spot for a day. And it’s not overly rough sex or anything. I still have times I’m hurting randomly also. I’m tired all the time. Also haven’t been off birth control since I was like 14 and I’m 30 so am wondering if I’m having some normal changes as well?