I’m roughly 4 weeks pregnant after an IVF fresh transfer with my only embryo. My home pregnancy tests have been getting darker (and are very positive) but I've been having light brown and red, watery spotting for the past 5 days. It started brown but turned a bit redder last night, which has me really anxious. My clinic won't discuss anything until my official test day tomorrow, and I’m worried that 5 days is too long for implantation bleeding since most sources say it typically lasts 1-3 days. Has anyone experienced this before? I’ve had a chemical before so I’m looking for some reassurance really. This mornings test pic below for reference.