7.5 weeks and severe constipation.

It's been 4 days since I've gone nr2. I drink plenty of water daily, however I'm sooo bloated and constipated..I can no longer eat cause it feels as if I would just pop If I took a bite out of anything. .

I drink LOTS of water but nothing helps. . I'm in so much pain due to the gas and not able to go poop.

Please help me...what do I take? I'm scared to take laxatives..I hear they are not safe while pregnant..